[Mpi3-rma] GetAccumulate restriction needed?

[Underwood, Keith D]

> > On 03/31/2011 10:20 PM, Rajeev Thakur wrote:
> >> Good catch. I think we should add that restriction. MPI_Sendrecv,
> for
> >> example, explicitly says the send and recv buffers must be disjoint.
> >
> > No MPI_IN_PLACE for Get_accumulate?
> Not yet, I agree that it could make sense though -- we should discuss
> this tomorrow.

Could you perhaps provide a use case?  Otherwise, it looks like an implementation nightmare with potentially unexpected performance characteristics associated with any working implementation choice.  

Do we have a call tomorrow?  I thought Rajeev's note said 4/11...